Compaq XL118-XL127 - Manual (Page 106)

26 R EMOVAL S EQUENCE P RESARIO N OTEBOOK M AINTENANCE AND S ERVICE G UIDE 1200XL S ERIES
Presario 1200 Series
Models: XL101-XL113, XL115, XL118-XL127
6. Disconnect the modem cable from the modem.
To replace the modem, reverse these procedures.